Open Source Android Antivirus Apps
Hypatia
Hypatia is the worlds first FOSS malware scanner for Android. It is powered by ClamAV style signature databases.
Features
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- Near zero battery impact: you’ll never notice any impact on battery at all.
- Extremely fast: it can scan small files (1MB) in 20ms, and even large files (40MB) in 1000ms.
- Memory efficient: with the default databases enabled it uses under 120MB.
- Regular scan: allowing selection of /system, internal storage, external storage, and installed apps.
- Completely offline: Internet is only used to download signature databases, files will never ever leave your device.
- Persistence: will automatically restart on boot/update.
- Tiny codebase: coming in at under 1000 sloc, it can be audited by even someone with basic programming experience.
- Minimal dependencies: the app only uses libraries when necessary.
- Signature databases can be enabled/disabled at the users demand.
- Signature databases are ClamAV .hdb (MD5 hashes) and .hsb (SHA-1/SHA-256) format
- Signature databases will not be redownloaded if the file hasn’t changed on the server (304 not modified)
- Signatures are stored using HashMaps for O(1) lookup
- Files have their MD5/SHA-1/SHA-256 hashes calculated in one pass
- Realtime scanner is multithreaded and will use half of the device’s core count for scanning multiple files asynchronously
- Realtime scanning powered by a recursive FileObserver
- Network connections will be made to the following: https://divested.dev/MalwareScannerSignatures/*.h*b.gz
Source Code:
The source code is available at the following GitHub repository:
https://github.com/Divested-Mobile/hypatia
LibreAV
A free and open-source anti-malware using machine learning in an attempt to detect malware in Android devices.
Features
- Real time scan – Automatically scan new app installations
- On device inference – Zero network traffic
- Open-source – The source code is distributed under GNU GPLv3
- Lightweight antivirus – Do not consume too much resources
- 100% free and No ads – We do not charge any fee or sell ads
Source Code:
The source code is available at the following GitHub repository:
https://github.com/projectmatris/antimalwareapp
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